The A748-4XW from Spacek Labs is a Frequency Multiplier with Input Frequency 17.375 to 19.375 GHz, Output Frequency 69.5 to 77.5 GHz, Output Power 4 to 6 dBm, Frequnecy 17.375 to 19.375 GHz, Current 300 mA. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for A748-4XW can be seen below.